@inproceedings{bleu,
  title={BLEU: a method for automatic evaluation of machine translation},
  author={Papineni, Kishore and Roukos, Salim and Ward, Todd and Zhu, Wei-Jing},
  booktitle={Proceedings of ACL},
  year={2002}
}
@inproceedings{koehn2004statistical,
  title={Statistical Significance Tests for Machine Translation Evaluation},
  author={Koehn, Philipp},
  booktitle={Proceedings of EMNLP},
  year={2004}
}
@InProceedings{W05-0909,
  author = 	"Banerjee, Satanjeev
		and Lavie, Alon",
  title = 	"METEOR: An Automatic Metric for MT Evaluation with Improved Correlation with Human Judgments",
  booktitle = 	"Proceedings of the ACL Workshop on Intrinsic and Extrinsic Evaluation Measures for Machine Translation and/or Summarization",
  year = 	"2005"
}
@inproceedings{snover2006study,
  title={A study of translation edit rate with targeted human annotation},
  author={Snover, Matthew and Dorr, Bonnie and Schwartz, Richard and Micciulla, Linnea and Makhoul, John},
  booktitle={Proceedings of Association for Machine Translation in the Americas},
  year={2006}
}
@InProceedings{P18-1083,
  author = 	"Wang, Xin
		and Chen, Wenhu
		and Wang, Yuan-Fang
		and Wang, William Yang",
  title = 	"No Metrics Are Perfect: Adversarial Reward Learning for Visual Storytelling",
  booktitle = 	"Proceedings of ACL",
  year = 	"2018"
}